SQL Updating TImeStamp To Now()

Question

I'm having my application checking the database for expired members.

I'm using: UPDATE members SET enabled=0 WHERE now() >= time

That runs every 30 seconds. It was first running at 10 seconds but I didn't know if that was an issue so I made it 30 seconds instead. That's the only thing I have running and my timestamp goes from the time I set and sets it to the time the SQL command is executed. Is there something I'm doing wrong?

Answer 1

Isn't this the expected result? You check the timestamp compared to now() (now() is always greater than time ) and you always update the field. The timestamp is updated also that' s why you get the execution time.